diff --git a/debuginterface.cpp b/debuginterface.cpp
index f11dcdd..b311600 100644
--- a/debuginterface.cpp
+++ b/debuginterface.cpp
@@ -4,6 +4,8 @@
 #include "qgdb/opendialog.h"
 
 #include <QMimeDatabase>
+#include <QStandardItemModel>
+#include <QMessageBox>
 #include <QtDebug>
 
 struct DebugInterface::Priv_t {
@@ -55,6 +57,7 @@ void DebugInterface::ICore_onStateChanged(TargetState state)
 
 void DebugInterface::ICore_onSignalReceived(QString signalName)
 {
+    QMessageBox::information(this->window(), tr("Signal recevied"), tr("Signal <<%1>>").arg(signalName));
 }
 
 void DebugInterface::ICore_onLocalVarReset()
@@ -89,12 +92,36 @@ void DebugInterface::ICore_onBreakpointsChanged()
 
 void DebugInterface::ICore_onThreadListChanged()
 {
+    QStandardItemModel *m = new QStandardItemModel(this);
+    foreach(ThreadInfo thd, Core::getInstance().getThreadList()) {
+        QStandardItem* thdItem = new QStandardItem(tr("[%3] %1: %2")
+                                                   .arg(thd.m_name)
+                                                   .arg(thd.m_func)
+                                                   .arg(thd.id));
+        thdItem->setData(QVariant::fromValue(thd), Qt::UserRole);
+        qDebug() << "create thread" << thd.id;
+        m->appendRow(thdItem);
+    }
+    ui->treeFrame->setModel(m);
 }
 
 void DebugInterface::ICore_onCurrentThreadChanged(int threadId)
 {
     qDebug() << "thread change" << threadId;
-    Core::getInstance().selectThread(threadId);
+    auto *m = qobject_cast<QStandardItemModel*>(ui->treeFrame->model());
+    if (m && threadId > 0 && threadId <= m->invisibleRootItem()->rowCount()) {
+        Core::getInstance().selectThread(threadId);
+        QStandardItem *thdItem = m->invisibleRootItem()->child(threadId-1, 0);
+        if (thdItem) {
+            ThreadInfo info = thdItem->data(Qt::UserRole).value<ThreadInfo>();
+            qDebug() << "select thread id" << info.id << info.m_func << info.m_name;
+            ui->treeFrame->selectionModel()->select(thdItem->index(),
+                                                    QItemSelectionModel::Rows |
+                                                    QItemSelectionModel::Select);
+        } else
+            qDebug() << "No thread item for " << threadId;
+    } else
+        qDebug() << "ignoring it" << threadId;
 }
 
 void DebugInterface::ICore_onStackFrameChange(QList<StackFrameEntry> stackFrameList)
@@ -116,9 +143,26 @@ void DebugInterface::ICore_onTargetOutput(QString message)
 void DebugInterface::ICore_onCurrentFrameChanged(int frameIdx)
 {
     qDebug() << "current frame" << frameIdx << priv->currentStackFrameList.size();
-    if (frameIdx < priv->currentStackFrameList.size()) {
+    if (frameIdx >= 0 && frameIdx < priv->currentStackFrameList.size()) {
         StackFrameEntry &entry = priv->currentStackFrameList[priv->currentStackFrameList.size()-frameIdx-1];
         documentArea->fileOpenAndSetIP(entry.m_sourcePath, entry.m_line, &projectView->makeInfo());
+        auto *m = qobject_cast<QStandardItemModel*>(ui->treeFrame->model());
+        if (m) {
+            QStandardItem *selectThread = nullptr;
+            foreach(auto i, ui->treeFrame->selectionModel()->selectedIndexes()) {
+                selectThread = m->itemFromIndex(i);
+                if (selectThread) {
+                    if (selectThread->data(Qt::UserRole).canConvert<ThreadInfo>()) {
+                        break;
+                    }
+                }
+            }
+            if (selectThread) {
+                ThreadInfo info = selectThread->data(Qt::UserRole).value<ThreadInfo>();
+                qDebug() << "inserting frames on" << info.id << info.m_name;
+
+            }
+        }
     }
 }
 
diff --git a/debuginterface.ui b/debuginterface.ui
index 439d26c..616288d 100644
--- a/debuginterface.ui
+++ b/debuginterface.ui
@@ -13,7 +13,7 @@
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout_3">
+  <layout class="QVBoxLayout" name="verticalLayout">
    <property name="spacing">
     <number>0</number>
    </property>
@@ -213,7 +213,7 @@
       <enum>Qt::Vertical</enum>
      </property>
      <widget class="QWidget" name="layoutWidget">
-      <layout class="QVBoxLayout" name="verticalLayout">
+      <layout class="QVBoxLayout" name="verticalLayout_1">
        <property name="spacing">
         <number>0</number>
        </property>
@@ -224,13 +224,47 @@
          </property>
          <item>
           <widget class="QLabel" name="label">
+           <property name="minimumSize">
+            <size>
+             <width>0</width>
+             <height>23</height>
+            </size>
+           </property>
+           <property name="text">
+            <string>Stack Frame</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="QTreeView" name="treeFrame">
+         <property name="editTriggers">
+          <set>QAbstractItemView::NoEditTriggers</set>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="layoutWidget_2">
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <property name="spacing">
+        <number>0</number>
+       </property>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_4">
+         <property name="spacing">
+          <number>0</number>
+         </property>
+         <item>
+          <widget class="QLabel" name="label_3">
            <property name="text">
             <string>Watch View</string>
            </property>
           </widget>
          </item>
          <item>
-          <widget class="QToolButton" name="buttonWatchAdd">
+          <widget class="QToolButton" name="buttonWatchAdd_2">
            <property name="toolTip">
             <string>Add Watch</string>
            </property>
@@ -250,7 +284,7 @@
           </widget>
          </item>
          <item>
-          <widget class="QToolButton" name="buttonWatchRemove">
+          <widget class="QToolButton" name="buttonWatchRemove_2">
            <property name="toolTip">
             <string>Remove Selected Watch</string>
            </property>
@@ -270,7 +304,7 @@
           </widget>
          </item>
          <item>
-          <widget class="QToolButton" name="buttonWatchClear">
+          <widget class="QToolButton" name="buttonWatchClear_2">
            <property name="toolTip">
             <string>Clear All Watchs</string>
            </property>
@@ -292,7 +326,11 @@
         </layout>
        </item>
        <item>
-        <widget class="QListWidget" name="listWatchs"/>
+        <widget class="QListWidget" name="listWatchs_2">
+         <property name="editTriggers">
+          <set>QAbstractItemView::NoEditTriggers</set>
+         </property>
+        </widget>
        </item>
       </layout>
      </widget>
@@ -356,7 +394,11 @@
         </layout>
        </item>
        <item>
-        <widget class="QListWidget" name="listBreakpoints"/>
+        <widget class="QListWidget" name="listBreakpoints">
+         <property name="editTriggers">
+          <set>QAbstractItemView::NoEditTriggers</set>
+         </property>
+        </widget>
        </item>
       </layout>
      </widget>
diff --git a/main.cpp b/main.cpp
index 52b3807..4086f4a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -18,6 +18,7 @@ int main(int argc, char *argv[])
     QCoreApplication::setOrganizationDomain("none.unknown.com");
     QCoreApplication::setApplicationName("embedded IDE");
     MainWindow w;
+    a.setWindowIcon(QIcon(":/images/embedded-ide.png"));
     adjustPath();
     w.show();
 
diff --git a/mapviewer.cpp b/mapviewer.cpp
index a23cd6f..f46b7d4 100644
--- a/mapviewer.cpp
+++ b/mapviewer.cpp
@@ -10,6 +10,7 @@
 #include <QProgressBar>
 #include <QRegularExpression>
 #include <QRegularExpressionValidator>
+#include <QSortFilterProxyModel>
 #include <QStandardItemModel>
 #include <QStyledItemDelegate>
 
@@ -302,6 +303,27 @@ class BarItemDelegate: public QStyledItemDelegate {
     }
 };
 
+class SymbolSortFilter: public QSortFilterProxyModel
+{
+public:
+    SymbolSortFilter(QObject *parent = 0l) : QSortFilterProxyModel(parent)
+    {
+        setSourceModel(new QStandardItemModel(this));
+    }
+    QStandardItemModel *itemModel() { return static_cast<QStandardItemModel*>(sourceModel()); }
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
+};
+
+bool SymbolSortFilter::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+    QVariant leftData = sourceModel()->data(left, Qt::UserRole);
+    QVariant rightData = sourceModel()->data(right, Qt::UserRole);
+    bool ok1 = false, ok2 = false;
+    uint32_t l = leftData.toUInt(&ok1);
+    uint32_t r = rightData.toUInt(&ok2);
+    return (ok1 && ok2)? (l < r) : false;
+}
+
 BarItemDelegate::~BarItemDelegate()
 {
 }
@@ -320,11 +342,12 @@ MapViewer::MapViewer(QWidget *parent) :
     ui->memoryTable->setSelectionBehavior(QAbstractItemView::SelectRows);
     ui->memoryTable->setItemDelegateForColumn(4, new BarItemDelegate(this));
 
-    ui->symbolsTable->setModel(new QStandardItemModel(this));
+    ui->symbolsTable->setModel(new SymbolSortFilter(this));
     ui->symbolsTable->setEditTriggers(QTableView::NoEditTriggers);
     ui->symbolsTable->setAlternatingRowColors(true);
     ui->symbolsTable->header()->setStretchLastSection(true);
     ui->symbolsTable->setSelectionBehavior(QAbstractItemView::SelectRows);
+    ui->symbolsTable->setSortingEnabled(true);
 }
 
 MapViewer::~MapViewer()
@@ -360,7 +383,7 @@ bool MapViewer::load(const QString &path)
             items[4]->setData((r.used * 100.0) / r.size, Qt::UserRole);
             memoryModel->appendRow(items);
         }
-        auto symbolsTree = qobject_cast<QStandardItemModel*>(ui->symbolsTable->model());
+        auto symbolsTree = static_cast<SymbolSortFilter*>(ui->symbolsTable->model())->itemModel();
         symbolsTree->clear();
         symbolsTree->setHorizontalHeaderLabels(QStringList({tr("Name"),
                                                             tr("Store address"),
@@ -376,8 +399,11 @@ bool MapViewer::load(const QString &path)
             QList<QStandardItem*> items;
             items += new QStandardItem(name.isEmpty()? tr("Symbols without section") : name);
             items += new QStandardItem(toHex(section.base));
+            items.last()->setData(section.base, Qt::UserRole);
             items += new QStandardItem(toHex(section.load));
+            items.last()->setData(section.load, Qt::UserRole);
             items += new QStandardItem(toHumanReadableSize(section.size));
+            items.last()->setData(section.size, Qt::UserRole);
             symbolsTree->appendRow(items);
             foreach(auto tru, section.translationUnits) {
                 if (tru.symbols.isEmpty())
@@ -385,8 +411,10 @@ bool MapViewer::load(const QString &path)
                 QList<QStandardItem*> childItems;
                 childItems += new QStandardItem(tru.isNull()? tr("No unit") : tru.path);
                 childItems += new QStandardItem(tru.isNull()? QString() : toHex(tru.addr));
+                childItems.last()->setData(tru.addr, Qt::UserRole);
                 childItems += new QStandardItem();
                 childItems += new QStandardItem(toHumanReadableSize(tru.size));
+                childItems.last()->setData(tru.size, Qt::UserRole);
                 items.first()->appendRow(childItems);
                 foreach(auto symbol,tru.symbols) {
                     QList<QStandardItem*> symbolItems;
diff --git a/qgdb/core.h b/qgdb/core.h
index 247f5b1..6eb5047 100644
--- a/qgdb/core.h
+++ b/qgdb/core.h
@@ -16,6 +16,8 @@ struct ThreadInfo {
 	QString m_func;
 };
 
+Q_DECLARE_METATYPE(ThreadInfo)
+
 struct StackFrameEntry
 {
 public: